Description Nature's Plus proudly introduces Advanced TherapeuticsGlucosamine Chondroitin MSM Ultra Rx-Joint, a condition-specific formula that targets the three key elements of healthy joints - Cartilage, Connective Tissue and Synovial Fluid. Each mega-potent tablet merges together theclinically proven powers of glucosamine, chondroitin andmethylsulfonylmethane (MSM) for results you can feel.